Cable impregnating apparatus



July 5, 1932. wuuuou: 1,355,418

CABLE IIPBEGNATING APPARATUS mm m. 16. 1929 Jam/2!;

Patented Juli 5, 1932 PATENT orrlca WALTER NEUHOLD, OI BERLIN, GERMANY CABLE IMPREGNATING APPARATUS Application fllegl December 18, 1929, Serial No. 414,609, and in Germany December 20, 1928.

This invention relates to cable impregnating means, and has for its object to generally improve on apparatus of this kind.

In impregnating electriccables it is usual to employ special vessels, in which at first the water-is removed from the cable by evacuation and heating, whereupon the mass is added which is employed for the actual impregnation.

In order to economize in impregnating substance it is the general practice to provide at the centre of the treating vessel a cylinder, whichrgsults in the formation of an annular treating space particularly adapted for the saturation of cables. 7

During the treatment of the cable there is connected to the apparatus an evacuating pump, which is liable to be adversely aflected should steam or particles of water or particles of impregnating substance be allowed to pass into the same. For this reason there is provided in the pump intake a separator for extracting all partlcles of moisture or other detrimental substances.

According to the invention the provision of -a special separator is avoided, and all particles of moisture are extracted in the displacer in the treating vessel itself. This construction obviates any leakage which may fitting.

The invention will now be described more 7 fully with reference to the accompanying drawing, in which Fig. 1 shows the improved type of apparatus according to the invention, and

Fig. 2 a modification of the embodiment accordni to Fig. 1. In t e known form of impregnating device the treating vessel A is, in order to economize-in impregnating substance, furnished with an interior fitting or displacer, through which a continuous vapor ipe is passed in an upward direction. In -t c section of the ipe E leading from the vessel A in the own form there is fitted a special vessel constructed as a separator, in order to retain from the pump, which is connected at F, any saturation substance which may have been picked up.

tend to occur in connection with a separate In the apparatus according tothe invention the separator may be omitted, as the displacer B itself is constructed to fulfill the same object. The displacer B is constructed to be perfectly tight, and into the same is passed the vapor pipe C. The vapors are sucked off through the pipe E, and any moisture, etc. which may have been picked up is separated and accumulates at the bottom of I the displacer B, where the same may be let off by means of the tap G.

Asimilar arrangement is shown in Fig. 2 adapted for use in association with a displacer which is open at the top. The cap H fitted on the pipe E prevents any undesirable particles whlch may have been picked up from penetrating into the said pipe. As in the previous embodiment, the separated mat ter (moisture, etc.) accumulates at the bottom of the displacer and may be removed through the tap G.

It will be understood that no restriction is made to the specific forms of embodiment shown, and that various modifications are. possible within the meaning of the above and the annexed claims without departing from the s irit of the invention.

W at I claim as new and desire to secureby Letters Patent is: a

1. In; an apparatus for impregnating cables having a saturation vessel for the cable, a displacer fitted in the said vessel, an evacuatin connection for said vessel through said vdisp acer and means within said displacer constructed to cooperate with said displacer for separating from the vapors drawn off durin evacuation any particles of moisture and oam which may have been picked up.

2. In an apparatus for impregnating cables having a saturation vessel for the cable, a displacer fitted in the said vessel, a pipe communicating between the said vessel and the said displacer, a second pipe leading outside of the apparatus to an evacuating pump, the said displacer cooperating with said pipes to constitute a means for separating from the vapors drawn ofi during evacuation and withholding from the said second pipe any particles of moisture and foam which may have been picked up, and a tap for removing from the bottom of the said displacer the moisture and foam extracted.

3. In an apparatus for impregnating cables having a saturation vessel for the cable, a displacer fitted in the said vessel, an evacuating pipe leading from the said vessel through the said displacer outside of the apparatus, a cap fitted over the end of the pipe situated within the said vessel, the said displacer cooperating with said pipe and cap to constitute ameans for separating from the vapors drawn ofi' during evacuation and withholding from the said pipe any particles of moisture and foam which may have been picked up, and a tap for removing from the bottom of the said displacer the moisture and foam extracted.

In testimony whereof I have afiixed my signature.

WALTER NEUHOLD. 

